Mr. CoLEBROOKE oYi the North-east of Bengal. 135 



interesting objects occur. In the examination of them, and of specimens of 

 rocks accompanying, I have been assisted by Mr. CHft and Mr. Webster : and 

 I could not, without the benefit of such aid, have taken upon myself the task, 

 or ventured to pronounce confidently on any part of these curious remains. 



The portion of sand which is found adhering to many of these specimens, 

 and which is no doubt the same with that termed by Mr, Scott yellow sand, 

 has many of the characters of the green sand that is found, in England and 

 Prance, lying in beds superior to the chalk. An observation no less curious 

 is, that the clay, with which it is here associated, bears a strong general re- 

 semblance, in respect of the animal remains which it contains, to the blue clay 

 of the London and Hampshire basins. Among the remains of fishes, — bony 

 palates and the fins of the bahstes are common to the Indian clay and to that 

 of Sheppey ; and the shells of Cooch-behar bear a strong generic, if not spe- 

 cific, resemblance to the marine formations above the chalk in France and 

 England. 



The fact of remains so analogous being found in places so remote and cli- 

 mates so dissimilar, seems not a little important in a geological view. 



Remains of aquatic animals, deposited under circumstances in many re- 

 spects alike, amidst the same strata, at similar elevations above the height of 

 the present ocean, and manifesting so strong a family resemblance, argue the 

 existence, in the primeval ocean, of like families of animals, diffused through 

 climes where the present races of beings are more dissimilar and limited to a 

 narrower range. 



The following enumeration comprises the chief part of the objects found 

 in that deposit which has been laid open in the Caribari Cliffs : — 



Sharks' teeth ; vertebrae and fin-bone of a shark. 



Crocodiles' teeth ; vertebra of a crocodile's neck ; thigh bone of a crocodile. 



Dorsal fin and pectoral fins of a batistes. 



Palates of the ray. 



Palates of the diodon. 



Claw of a lobster ? 



Vertebrae of a bony fish. 



Teeth of a small quadruped. 



Teeth of another small quadruped. 



Oyster shells, of various species. 



Several species of cerythium ? 



Turritella, one or more species. 



Balanus. 



Patella. — With some others. 



At Harigong, in the district of Caribari, upon the banks of the Brahm- 



